Question 1

A variable listed in a header is known as a(n)  ____ parameter.

Accepted Answer

A)   actual
B)   local
C)   formal
D)   functionE) A) and C)
F) All of the above

Question 2

Assume that all variables are properly declared. The following statement in a value-returning function is legal.
if (x % 2 == 0)
return x;
else
return x + 1;

Accepted Answer

A) True 
 B)False

Question 3

A function prototype is ____.

Accepted Answer

A)   a definition, but not a declaration
B)   a declaration and a definition
C)   a declaration, but not a definition
D)   a comment lineE) A) and B)
F) A) and C)

Question 4

Once you write and properly debug a function, you can use it in the program (or different programs) again and again without having to rewrite the same code repeatedly.

Accepted Answer

A) True 
 B)False

Question 5

The statement: return 37, y, 2 * 3; returns the value ____.

Accepted Answer

A)   2
B)   3
C)   y
D)   6E) A) and B)
F) A) and C)

Question 6

The program that tests a function is called a(n) ____________________ program.

Accepted Answer

The answer of The program that tests a function is...

Question 7

The execution of a return statement in a user-defined function terminates the program.

Accepted Answer

A) True 
 B)False

Question 8

The output of the statement: cout << tolower('$')  << endl;
Is ____.

Accepted Answer

A)   '$'
B)   '0'
C)   '1'
D)   An error, because you cannot use tolower with '$'.E) A) and D)
F) A) and C) A

Question 9

Given the following function prototype: double tryMe(double, double) ;, which of the following statements is valid? Assume that all variables are properly declared.

Accepted Answer

A) cin >> tryMe(x) ; B) cout C) cout D) cout << tryMe(tryMe(float, float) , float) ;E) A) and C) F) A) and B)

Question 10

The ____________________ of an identifier refers to where in the program an identifier is accessible (visible).

Accepted Answer

scope

Question 11

The following function heading in a C++ program is valid:
int funcExp(int u, char v, float g)

Accepted Answer

A) True 
 B)False

Question 12

Given the following function: int next(int x) 
{
 \quad Return (x + 1) ;
}
What is the output of the following statement?
Cout << next(next(5) )  << endl;

Accepted Answer

A)   5
B)   6
C)   7
D)   8 E) A) and B)
F) All of the above

Question 13

The standard header file for the abs(x) function is ____.

Accepted Answer

A) B) C) D) E) B) and D) F) All of the above

Question 14

The following return statement returns the value 10.
return 10, 16;

Accepted Answer

A) True 
 B)False

Question 15

Assume the following. static_cast('a') = 97 Static_cast('A') = 65 The output of the statement: Cout << static_cast(tolower('B') ) << endl; is ____.

Accepted Answer

A)   65
B)   67
C)   96
D)   98E) A) and B)
F) B) and D)

Question 16

Given the following function prototype: int test(float, char) ;, which of the following statements is valid?

Accepted Answer

A)   cout 
B)   cout 
C)   int u = test(5.0, '*') ;
D)   cout << test('12', '&') ;E) All of the above
F) A) and B)

Question 17

The data type of a variable in a return statement must match the function type.

Accepted Answer

A) True 
 B)False

Question 18

Which of the following function prototypes is valid?

Accepted Answer

A)   int funcExp(int x, float v) ;
B)   funcExp(int x, float v) {};
C)   funcExp(void) ;
D)   int funcExp(x) ;E) All of the above
F) A) and D) A

Question 19

____________________ identifiers are not accessible outside of the function (block).

Accepted Answer

The answer of ____________________ identifiers are not accessible outside of...

Question 20

When you attach & after the dataType in the formal parameter list of a function, the variable following that dataType becomes a(n) ____________________ parameter.

Accepted Answer

The answer of When you attach & after the dataType...

Exam 6: User-Defined Functions

A variable listed in a header is known as a(n) ____ parameter.

Correct AnswerverifiedShow Answer

Assume that all variables are properly declared. The following statement in a value-returning function is legal. if (x % 2 == 0) return x; else return x + 1;

Correct AnswerverifiedShow Answer

A function prototype is ____.

Correct AnswerverifiedShow Answer

Once you write and properly debug a function, you can use it in the program (or different programs) again and again without having to rewrite the same code repeatedly.

Correct AnswerverifiedShow Answer

The statement: return 37, y, 2 * 3; returns the value ____.

Correct AnswerverifiedShow Answer

The program that tests a function is called a(n) ____________________ program.

Correct AnswerverifiedShow Answer

The execution of a return statement in a user-defined function terminates the program.

Correct AnswerverifiedShow Answer

The output of the statement: cout << tolower('$') << endl; Is ____.

Correct AnswerverifiedA

Given the following function prototype: double tryMe(double, double) ;, which of the following statements is valid? Assume that all variables are properly declared.

Correct AnswerverifiedShow Answer

The ____________________ of an identifier refers to where in the program an identifier is accessible (visible).

Correct Answerverifiedscope

The following function heading in a C++ program is valid: int funcExp(int u, char v, float g)

Correct AnswerverifiedShow Answer

Given the following function: int next(int x) { \quad Return (x + 1) ; } What is the output of the following statement? Cout << next(next(5) ) << endl;

Correct AnswerverifiedShow Answer

The standard header file for the abs(x) function is ____.

Correct AnswerverifiedShow Answer

The following return statement returns the value 10. return 10, 16;

Correct AnswerverifiedShow Answer

Assume the following. static_cast<int>('a') = 97 Static_cast<int>('A') = 65 The output of the statement: Cout << static_cast<int>(tolower('B') ) << endl; is ____.

Correct AnswerverifiedShow Answer

Given the following function prototype: int test(float, char) ;, which of the following statements is valid?

Correct AnswerverifiedShow Answer

The data type of a variable in a return statement must match the function type.

Correct AnswerverifiedShow Answer

Which of the following function prototypes is valid?

Correct AnswerverifiedA

____________________ identifiers are not accessible outside of the function (block).

Correct AnswerverifiedShow Answer

When you attach & after the dataType in the formal parameter list of a function, the variable following that dataType becomes a(n) ____________________ parameter.

Correct AnswerverifiedShow Answer

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Given the following function: int next(int x) { $\quad$ Return (x + 1) ; } What is the output of the following statement? Cout << next(next(5) ) << endl;

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